Vol. III.] 



MORNING-GLORY FAMILY. 



25 



6. CONVOLVULUS L. Sp. PI. 153. 1753- 

 Herbs (the following species perennials with slender rootstocks) with trailing, twining 

 or erect stems. Leaves entire dentate or lobed, mostly cordate or sagittate and petioled. 

 Flowers axillary, solitary or clustered, large, pink, purple or white. Sepals nearly equal or 

 the outer larger, the calyx bractless or with a pair of bracts at its base. Corolla funnel- 

 form or campanulate, the limb plaited, 5-angled, 5-lobed, or entire. Stamens inserted on 

 the tube of the corolla, included; filaments filiform, or dilated at the base. Ovary 1-2- 

 celled, 4-ovuled; style filiform; stigmas 2, filiform, oblong, or ovoid. Capsule globose or 

 nearly so, 1-4-celled, 2-4-valved. Seeds glabrous. [Latin, to roll together, or entwine.] 



About 175 species, of wide distribution in tropical and temperate regions. Besides the follow- 

 ing-, some 10 others occur in the southern and western United States. 

 Calyx with 2 large bracts at the base, which enclose it. (Genus Volvulus Medic. ) 



Stems trailing or climbing. 



Stems 3-io long; leaves hastate, the auricles often dentate. 



Stems i-3 long; leaves sagittate, the auricles rounded, entire. 

 Stem erect or ascending; flowers white; bracts not cordate. 

 Calyx not bracted; peduncle bracted at the summit. 

 Glabrous or nearly so; leaves entire, auriculate. 

 Canescent; leaves with 2-4 basal lobes. 



1. 



2. 



3- 



4- 

 5- 



C. septum. 



C. repens. 



C. spithamaeus. 



C. 

 C. 



arvensis. 

 incanus. 



i. Convolvulus sepium L. Hedge 



or Great Bindweed. Rutland 



Beauty. (Fig. 2951.) 



Convolvulus septum L. Sp. PI. 153. 1753. 

 Convolvulus sepium var. Americanus Sims, 



Bot. Mag. pi. 732. 1804. 

 Calystegia sepium R. Br. Prodr. Fl. Nov. Holl. 



1: 483. 1810. 



Glabrous or pubescent; stems extensively 

 trailing or twining, 3-io long. Leaves 

 slender-petioled, triangular in outline, has- 

 tate, 2 / -5 / long, acute or acuminate at the 

 apex, the basal lobes divergent, usually 

 acute, angulate dentate or entire; petioles 

 Yz'-z' long; peduncles i-flowered, longer 

 than the leaves; flowers pink with white 

 stripes or white throughout, about 1' long; 

 bracts at the base of the corolla, large, ovate, 

 acute or obtuse, cordate; stigmas oblong. 



In fields and thickets, usually in moist soil, 

 Nova Scotia to North Carolina, west to Minne- 

 sota, Utah and Nebraska. Also in Europe and 

 Asia. The plants of eastern North America 

 perhaps constitute several species. June-Aug. 

 Old names, Bell-bind, Woodbind, Lily-bind, 

 Lady's Nightcap and Hedge Lily. 



Convolvulus Japonicus Thunb. Fl. Jap. 85, 1784, a species with narrow hastate leaves and smaller 

 pink flowers, cultivated in a double-flowered form, has in this form escaped from cultivation from 

 southeastern New York to the District of Columbia and Missouri. 



2. Convolvulus repens L. Trailing 

 Bindweed. (Fig. 2952.) 



Convolvulus repens L. Sp. PI. 153. 1753- 

 Calystegia sepium var. pubescens A. Gray, Man. 



Ed. 5, 376. 1867. 

 Convolvulus sepium var. repens A. Gray, Syn. Fl. 



2: Part 1, 215. 1878. 



Pubescent or tomentose; stem trailing or 

 twining, i-3 long, simple, or sparingly 

 branched. Leaves ovate or oblong, petioled, 

 i / -2 / long, obtuse, acute or abruptly acuminate 

 at the apex, sagittate or cordate at the base, en- 

 tire, the basal lobes rounded, scarcely or not at 

 all divergent; petioles yi'-V long; peduncles 1- 

 flowered, equalling or longer than the leaves; 

 flowers white (sometimes pink?) about 1' long; 

 calyx enclosed by 2 ovate acute or obtusish 

 slightly cordate bracts; stigmas oblong. 



In dry fields, Virginia to Florida, west to Dakota 

 and Texas. May-Aug. 



